Income Taxes (Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 3,871	$ 7,127	$ 7,274
State	688	2,405	2,097
Foreign	53,608	74,072	125,431
Total current	58,167	83,604	134,802
Deferred:
Federal	(10,300)	(4,896)	2,497
State	(1,594)	(1,658)	8,449
Foreign	(919)	(8,935)	(15,522)
Total deferred	(12,813)	(15,489)	(4,576)
Provision for income taxes	$ 45,354	$ 68,115	$ 130,226